Fluid product dispensing device

Abstract

A fluid dispenser device comprising a body ( 10 ), said device further including: an elongate flexible strip ( 20 ) supporting a plurality of reservoirs ( 21 ) each containing a dose of fluid or powder; reservoir-opening means ( 30 ) for opening a respective reservoir on each actuation; first displacement means ( 40 ) for causing said flexible strip ( 20 ) to advance before and/or during and/or after each actuation, so as to bring a full reservoir into register with said reservoir-opening means; and second displacement means ( 45 ) for displacing a full reservoir ( 21 ) against said opening means ( 30 ) each time the device is actuated, the leading end ( 25 ) of said flexible strip ( 20 ), in the advance direction of said strip, being fastened to a receiver element ( 50 ) that is rotatably mounted relative to said body ( 10 ), said receiver element ( 50 ) being adapted to exert a traction force on said elongate strip ( 20 ), said traction force being independent of said first displacement means ( 40 ), said traction force being applied on said strip when said second displacement means ( 45 ) move the empty reservoir ( 21 ) away from said opening means ( 30 ) after each actuation.

1. A fluid dispenser device comprising:
 a body; 
 an elongate flexible strip supporting a plurality of reservoirs each containing a dose of fluid or powder; 
 reservoir-opening means for opening a respective reservoir on each actuation; 
 first displacement means for causing said flexible strip to advance at least one of before, during and after each actuation, so as to bring a full reservoir into register with said reservoir-opening means; and 
 second displacement means for displacing a full reservoir against said opening means each time the device is actuated; 
 wherein a leading end of said flexible strip, in the advance direction of said strip, is fastened to a receiver element that is rotatably mounted relative to said body, said receiver element being adapted to exert a traction force on said elongate strip, said traction force being independent of said first displacement means, said traction force being applied on said strip when said second displacement means move the empty reservoir away from said opening means after each actuation; 
 said opening means comprises a needle that does not move relative to said body, a reservoir being displaced against said needle each time the device is actuated, said needle penetrating into said reservoir so as to empty the reservoir by an inhalation flow. 
 
     
     
       2. A device according to  claim 1 , in which said rotary receiver element is secured to said second displacement means and includes a set of teeth that co-operates with an actuator member that is secured to said body. 
     
     
       3. A device according to  claim 2 , in which said set of teeth co-operates with an anti-return device, such as a finger, so as to prevent said rotary receiver element from turning in the direction opposite to that which is imparted thereto by said actuator member. 
     
     
       4. A device according to  claim 2 , in which said actuator member is approximately triangular in shape, with a point that co-operates with the set of teeth, said point being connected to the body via a first flexible branch and via a second flexible branch. 
     
     
       5. A device according to  claim 4 , in which said first and second branches have different elasticities. 
     
     
       6. A device according to  claim 4 , in which said first branch curves towards the inside of the triangular actuator member. 
     
     
       7. A device according to  claim 4 , in which said second branch curves towards the outside of the triangular actuator member. 
     
     
       8. A device according to  claim 3 , in which said anti-return device is approximately triangular in shape, with a point that co-operates with the set of teeth, said point being connected to the body via a first flexible branch and via a second flexible branch. 
     
     
       9. A device according to  claim 8 , in which said first and second branches have different elasticities. 
     
     
       10. A device according to  claim 8 , in which said first branch curves towards the inside of the triangular anti-return device. 
     
     
       11. A device according to  claim 8 , in which said second branch curves towards the outside of the triangular anti-return device. 
     
     
       12. A device according to  claim 1 , in which said rotary receiver element includes a fastener rod that is offset relative to its axis of rotation, said leading end of the elongate flexible strip being fastened to said rod. 
     
     
       13. A device according to  claim 1 , in which said opening means are controlled by the user inhaling, such that the reservoir is opened and emptied simultaneously by said inhalation flow. 
     
     
       14. A fluid dispenser device comprising;
 a body; 
 an elongate flexible strip supporting a plurality of reservoirs each containing a dose of fluid or powder; 
 a perforator positioned to open a respective reservoir on each actuation; 
 an indexer wheel that advances flexible strip at least one of before, during and after each actuation, so as to bring a full reservoir into register with the perforator; and 
 a pivoting element that displaces a full reservoir against the perforator each time the device is actuated; 
 wherein a leading end of the flexible strip, in an advance direction of the strip, is fastened to a receiver element that is rotatably mounted relative to the body, the receiver element configured to exert a traction force on the elongate strip, wherein the traction force is independent of the indexer wheel, the traction force being applied on the strip when the pivoting element moves the empty reservoir away from the perforator after each actuation; 
 wherein the perforator comprises a needle that does not move relative to the body, a reservoir is displaced against the needle each time the device is actuated, and the needle penetrates into the reservoir so as to empty the reservoir by an inhalation flow.